Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Abdominal or stomach pain

diarrhea

dizziness

headache

nausea

numbness or tingling in the arms or legs

swelling

trouble thinking, speaking, or walking

vomiting

weakness

weight gain

Less common

Black, tarry stools

bladder pain

blood in the vomit

bloody or cloudy urine

blurred or loss of vision

burning feeling in the chest or stomach

burning, itching, redness, or stinging of the skin

chest pain

difficult, burning, or painful urination

disturbed color perception

double vision

frequent urge to urinate

halos around lights

indigestion

lower back or side pain

night blindness

overbright appearance of lights

severe or continuing stomach pain

stomach upset

tenderness in the stomach area

tunnel vision

Rare

Back or leg pains

bleeding gums

blistering, peeling, or loosening of the skin

chills

constipation

cough or hoarseness

dark urine

decreased urine output

difficulty with breathing

difficulty with swallowing

dilated neck veins

extreme fatigue

fast, irregular heartbeat

feeling of discomfort

fever

general body swelling

heartburn

hives or welts

increased thirst

inflammation of the joints

irregular breathing

joint or muscle pain

light-colored stools

loss of appetite

muscle aches

nosebleeds

pale skin

pinpoint red spots on the skin

puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

red skin lesions, often with a purple center

red, irritated eyes

severe and continuing nausea

shortness of breath

skin rash

sore throat

sores, ulcers, or white spots on the lips or in the mouth

swelling of the face, fingers, feet, or lower legs

swollen, painful, or tender lymph glands in the neck, armpit, or groin

tightness in the chest

trouble with breathing

unusual bleeding or bruising

unusual tiredness or weakness

upper right abdominal pain

wheezing

yellow eyes and skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Acid or sour stomach

belching

bloated full feeling

excess air or gas in the stomach or intestines

lack or loss of strength

passing gas

stomach discomfort

weight loss

Less common

Continuing ringing or buzzing or other unexplained noise in the ears

discouragement

feeling sad or empty

hearing loss

irritability

loss of interest or pleasure

sleepiness

tiredness

trouble with concentrating

trouble with sleeping

Rare

Redness, swelling, or soreness of the tongue

swelling or inflammation of the mouth

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.